What is the passage mainly about?

Fungal partnerships and connections are real, but broad claims about tree sharing remain unsettled (The passage separates established fungal partnerships and movement from unsettled claims about benefit and intent.)

What can fungal threads help a tree obtain?

Water and minerals from soil (The opening paragraph says fungal threads can help a tree obtain water and minerals.)

Why does finding a labeled atom in a neighboring tree not prove deliberate sharing?

Movement alone does not show the route, benefit, control, or intent (The passage repeatedly separates evidence of movement from claims about route, benefit, control, and intent.)

In this passage, “network” means

a group of connected living partners or pathways (A common mycorrhizal network can connect one fungus with more than one plant.)

What Connects Beneath a Forest: Level 3 Reading Comprehension Questions

Many tree roots form partnerships with fungi. Fine fungal threads reach through soil and can help a tree obtain water and minerals. In return, the fungus receives carbon-rich compounds made by the tree. This exchange between a plant and its fungal partner is well established.

One fungus may connect with more than one plant, creating what researchers call a common mycorrhizal network. Experiments have detected carbon or chemical changes associated with connected plants. Those findings show that movement can occur. They do not settle how common each route is in a forest, who benefits overall, or whether the fungus, the plants, or both control the exchange.

Testing the network is difficult. Roots may touch, substances may move through soil, and experimental barriers can change water and microbes as well as fungal links. A labeled atom found in a neighbor shows that it traveled, but not automatically that one tree deliberately fed another.

The phrase “wood wide web” is memorable, but it can make a forest sound like a human communication system. Evidence for helpful sharing and warning messages varies by species and experiment. A careful account keeps two ideas together: underground fungal connections are real, and their ecological meaning remains an active question.

Comprehension questions